i think its more because of fps (frame per second)
those car are really well modeled, it suck some juice!!
and the ps2 dont have a big processor, its surprisingly nice for that power.
gt1 and gt2 was a revolution, its hard to have a revolution again after that.
gt3 was good, but people dont like the fact that it have less car than gt2, now gt4 have more car, but its not enought. i know the game miss some improvement,
but IMO its still the best. even more than GTR, i have GTR, played it a lot, skin a lot of car, but it get boring too after a while, think about it,
im sure you play GTR 1 year and you will be bored, gt series is here since what...1999 or so... not bad , we still keep interest for a game 6-7 years old.
its hard to beat if you want me.
and if you have no more than a P4 (or equivalent) GTR will not be sooo good,
i have a AMD2200 1gig ddr, fx5700(overclocked) , and the game run fine but when i play a championship,i cant play with more than 2 other AI without lag.
to play with 5 other AI , i need to bring down some graphic options, wich is now not very good looking, but online its good.
with a good machine everything is fine.
sorry offtopic,
i think the online version will change many thing and will bring back the flame. 👍